tourmaline (California state mineral)
GPTKB entity
Statements (19)
Predicate | Object |
---|---|
gptkbp:instanceOf |
gptkb:flag
granite |
gptkbp:category |
silicate mineral
|
gptkbp:chemicalFormula |
(Ca,K,Na)(Al,Fe,Li,Mg,Mn)3(Al,Cr,Fe,V)6(BO3)3(Si,Al,B)6O18(OH,F)4
|
gptkbp:color |
varied
|
gptkbp:crystalSystem |
trigonal
|
gptkbp:designatedAsStateMineralIn |
gptkb:California
|
gptkbp:designationYear |
1997
|
gptkbp:hardnessMohs |
7–7.5
|
https://www.w3.org/2000/01/rdf-schema#label |
tourmaline (California state mineral)
|
gptkbp:notablePlace |
Riverside County
San Diego County |
gptkbp:relatedGroup |
tourmaline group
|
gptkbp:stateSymbolOf |
gptkb:California
|
gptkbp:symbol |
state mineral
|
gptkbp:usedFor |
gptkb:jewelry
granite |
gptkbp:bfsParent |
gptkb:Gem_and_Mineral_Hall
|
gptkbp:bfsLayer |
6
|